Internal-combustion engine



E. JUST INTERNAL COMBUSTION ENGINE Filed April 26, 1927 awuemtoz 21117fad"! Patented Nov. 27, 1928.

UNITED STATES PATE NT OFFICE.

' EMIL JUST, F BRONX, NEW YORK.

INTERNAL-COMBUSTTON ENGINE.

Application filed April 26, 1927. Serial No. 186,607.

It is therefore the main object of this invention to provide an internalcombustion engine-that is relatively small and compact,

11$ comprised of only one combustion chamber in which two pistons areoperable.

A further object is in the provlsion of an inexpensive engine having fewand simple parts and which is capable of developinga 2 greaterpower, inproportion to'.the size and cost of the device, than the engines usedheretofore. I

These and other objects-which will become apparent as thedescriptionprogresses, are accomplished by the novel construction,combination and arrangement of parts, hereinafter described andillustrated in the accompanying drawing, forming a material portion ofthis disclosure, and in which:-

' Figure 1 is a vertical sectional view taken approximately through thecenter of the device.

Figure 2 is a partial side elevational, partial sectional view taken online 2-2 of Figure 1.

, In the drawing, the numeral 5 generally designates a combustionchamber having its lower side walls flared outwardly at 6, its

Extending outwardly from the side walls are cylindrical heads 8 providedwith spark plugs 9 connected to a source of electrical energy and inlets10 connected to a source of fuel, such as gasoline. I

Disposed below the heads 8 are outlets 11 constituting exhaust ports forthe burnt v upper wall 7 curving downwardly at its cen- 40 ter.

ings of the heads 8, are raised conical discs or piston heads 14, thebacks of the arms being connected by a pivoted link 15.

Pivoted to the lower end of the arms 13-13 are levers 16-16 having slots17 -17 engagingpins 18-18 fixed in cranks 19-19" fast on shafts 20-20journalled in bearings 21 and extending beyond the chamber 5.

The pins 18-18 are connected by a link 22 so that both shafts 20-20will'ope-rate simultaneously.

Thus, in operation, as shown in Figure 1, the lever, arm 13 ispositioned so that its disc 14; projects into the adjacent head 8 tocompress the gas which has been entered therein through the inlet 10.

When the spark. 's applied, the gas will explode and the lever arm 13will be forced toward the centerof the chamber, which action through thecrank system described, i'otates the shafts 20-20.

By this time the arm 13 has been moved .to compress the gas in theopposite chamber 8 where the action will be repeated'to give the shafts20-20' a continuous motion.

It will thus be noted that because of the length of the arms 13-13,thepower im.-

parted to the shafts 20-20 will be much greater than has been in enginesof this type heretofore.

It will further be noticed that because of the 'size and simplicity ofthe motor, the

cost, both initially and the upkeep will be materially less than before.

- Although the foregoing is descriptive of the preferred embodiment ofmy device,

changes may be made without departing from the scope of the appendedclaim.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

An internal combustion engine comprislng the combination with a chamberhaving means to produce a sfpark and inlet and outlet ports, of a pair 0flat, rectangular levers pivotally mounted in said chamber, raised,conical piston heads on the ends of said levers, said levers :beingadapted to beoscillated by successive explosions in said chamber, a.pair

of shafts, and a crank lever system whereby power is transmitted fromsaid levers to said shafts. 7

In witness whereof I have aflixed my signature.

EMIL JUST.

